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Method and apparatus for generating and playing audio signals, and system for processing audio signals

a technology for audio signals and audio signals, applied in the field of communication technologies, to achieve the effect of accurate obtaining

Active Publication Date: 2011-07-07
HUAWEI DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a method and apparatus for generating and playing audio signals, and a system for processing audio signals. The invention allows for accurate position information, including direction and distance, to be obtained without increasing the size of the microphone array. The audio signals are encoded and sent for playback using a speaker array or a surround stereo system. The technical effect of the invention is to provide a more precise and immersive listening experience for users.

Problems solved by technology

In addition, a similar problem occurs when the scene is reproduced by using a three-dimensional video. FIG. 2 is a planform of a site layout in the prior art.

Method used

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  • Method and apparatus for generating and playing audio signals, and system for processing audio signals

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embodiment 1

of the Apparatus for Playing Audio Signals

[0149]FIG. 18 shows a structure of an apparatus for playing audio signals according to a first embodiment of the present invention. The apparatus may include an audio signal decoding module 316, an audio signal distance information obtaining module 317, a speaker signal obtaining module 318, and a speaker signal playing module 319. The audio signal distance information obtaining module 317 is connected with the audio signal decoding module 316. The speaker signal obtaining module 318 is connected with the audio signal decoding module 316 and the audio signal distance information obtaining module 317. The speaker signal playing module 319 is connected with the speaker signal obtaining module 318. The audio signal decoding module 316 is configured to decode the received encoded data, and obtain the audio signal and direction information about the audio signal. The audio signal distance information obtaining module 317 is configured to obtain t...

embodiment 2

of the Apparatus for Playing Audio Signals

[0152]FIG. 19 shows a structure of an apparatus for playing audio signals according to a second embodiment of the present invention. On the basis of the structure shown in FIG. 18, the audio signal distance information obtaining module 317 may be an audio signal distance information decoding module 320 configured to decode the received encoded data and obtain the distance information about the audio signal.

[0153]In this embodiment, the apparatus may further include a receiver communication interface 321 configured to receive encoded data sent through the network and send the encoded data to the audio signal decoding module 316.

[0154]In this embodiment, the audio signal decoding module 316 decodes the received encoded data, and obtains the audio signal and direction information about the audio signal; the audio signal distance information decoding module 320 decodes the received encoded data, and obtains the distance information about the aud...

embodiment 3

of the Apparatus for Playing Audio Signals

[0155]FIG. 20 shows a structure of an apparatus for playing audio signals according to a third embodiment of the present invention. On the basis of the structure shown in FIG. 18, the apparatus may further include a first video signal decoding module 322 configured to decode the received encoded data and obtain an auxiliary video.

[0156]On the basis of the structure shown in FIG. 18, the audio signal distance information obtaining module 317 may specifically be an audio signal distance information obtaining module 31 connected with the audio decoding module 316 and the first video signal decoding module 322 and configured to generate the distance information about the audio signal, according to the auxiliary video and the direction information about the audio signal.

[0157]The audio signal distance information obtaining module 31 may include a depth information obtaining unit 311, a coordinate information obtaining unit 312, and a distance inf...

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Abstract

A method for generating and playing audio signals and a system for processing audio signals are disclosed. The method for generating audio signals includes: generating distance information about an audio signal corresponding to a view point position, according to obtained auxiliary video and direction information about the audio signal, where the auxiliary video is a disparity map or a depth map; encoding the direction information and distance information about the audio signal, and sending the encoded information. The apparatus for generating audio signals includes an audio signal distance information obtaining module and an audio signal encoding module. With the present invention, the position information, including direction information and distance information, about the audio signal may be obtained accurately in combination with a three-dimensional video signal and a three-dimensional audio signal, without increasing the size of a microphone array, and the audio signal is sent and played.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of International Application No. PCT / CN2009 / 073406, filed on Aug. 21, 2009, which claims priority to Chinese Patent Application No. 200810119140.5, filed on Aug. 27, 2008, both of which are hereby incorporated by reference in their entireties.FIELD OF THE INVENTION[0002]The present invention relates to the field of communication technologies, and in particular to a method and an apparatus for generating and playing audio signals, and a system for processing audio signals.BACKGROUND[0003]Three-dimensional video technologies can provide pictures with depth information that complies with a stereoscopic principle. Three-dimensional technologies use a microphone array to pick up a sound, and can obtain an enhanced sound and information about direction and distance of the sound by using a beam-forming method. A speaker array is used to replay the sound, and methods such as wave field synthesis are used to repl...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04S3/00H04R5/027G10L19/008G10L21/0216G10L21/028
CPCG10L19/008H04S2420/03G10L2021/02166H04N7/147H04N7/15H04N13/0239H04N13/0271H04N13/04H04R1/403H04R1/406H04R2203/12H04S7/30H04S2400/11H04S2400/15G10L21/028H04N13/30H04N13/271H04N13/239
Inventor ZHAN, WUZHOUWANG, DONGQI
Owner HUAWEI DEVICE CO LTD